EP2644952B1 - Vanne à coulisse pour fermer une conduite - Google Patents

Vanne à coulisse pour fermer une conduite Download PDF

Info

Publication number
EP2644952B1
EP2644952B1 EP12002382.5A EP12002382A EP2644952B1 EP 2644952 B1 EP2644952 B1 EP 2644952B1 EP 12002382 A EP12002382 A EP 12002382A EP 2644952 B1 EP2644952 B1 EP 2644952B1
Authority
EP
European Patent Office
Prior art keywords
wedge
bellows
shutting
gate valve
slide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12002382.5A
Other languages
German (de)
English (en)
Other versions
EP2644952A1 (fr
Inventor
Matthias Schubert
Gunter Wodara
Hannes Kellermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Phoenix Armaturen Werke Bregel GmbH
Original Assignee
Phoenix Armaturen Werke Bregel GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phoenix Armaturen Werke Bregel GmbH filed Critical Phoenix Armaturen Werke Bregel GmbH
Priority to EP12002382.5A priority Critical patent/EP2644952B1/fr
Priority to US13/852,348 priority patent/US9080675B2/en
Priority to CN201310106871.7A priority patent/CN103363140B/zh
Publication of EP2644952A1 publication Critical patent/EP2644952A1/fr
Application granted granted Critical
Publication of EP2644952B1 publication Critical patent/EP2644952B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
    • F16K3/18—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
    • F16K3/14—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces with special arrangements for separating the sealing faces or for pressing them together

Definitions

  • the invention relates to a slide for shutting off a pipeline, wherein the slide comprises a slide housing and a slide wedge, which is insertable into a wedge seat arranged in the slide housing, wherein the slide wedge in the direction of passage of the pipe on both sides of a wedge plate having play in the direction the central longitudinal axis of the pipe are arranged on the slide wedge, wherein each wedge plate can be pressed by at least one elastic element against the wedge receptacle in the slide housing wherein the at least one elastic element is formed as an approximately circular circumferential bellows.
  • the arrangement of the wedge plate with play on the slide wedge causes the wedge plate is pressed by the elastic member by utilizing an axial clearance against the wedge mount.
  • a slider of the type mentioned is known from the prior art. Gate valves commonly serve to shut off pipelines in which liquid or gaseous media are transported. For this purpose, the slider is inserted with the slider housing in the pipeline, i. on both sides of the valve body, the pipeline is flanged.
  • the slider housing has a spindle drive, which is usually driven by a motor.
  • the spindle drive shows end in the slide housing the slide wedge, which can be inserted into the wedge holder of the slide housing by means of the spindle drive, and insofar shuts off the pipeline.
  • the slide wedge has a wedge plate at least on one side of the slide wedge, wherein the wedge plate is arranged with axial play on the slide wedge.
  • "Axial” means in this case in the direction of the longitudinal axis of the tube.
  • an elastic element is provided between the wedge plate on the one hand and slide wedge on the other hand, which ensures that the wedge plate against the wedge mount is kept pressed.
  • springs are provided as elastic elements which ensure that the wedge plate is pressed against the wedge holder. That is, the annular wedge plate is pressed against the seal seat in the wedge mount.
  • the wedge plate is not only pressed against the seal seat of the wedge mount when the slide wedge has reached its closed position, but also during the insertion process. As a result, when the slide wedge is inserted into the wedge mount, the wedge plate already bears against the seal seat of the wedge mount.
  • the respective seal seat of the wedge mount is usually formed by a on the wedge mount, which is formed by the slide housing, arranged circumferential seal and a correspondingly formed on the wedge plate seal, wherein the seals may be designed as stainless steel pairings in the form of metallic welds.
  • a gate valve of the aforementioned type comprising two movable closure plates, each having a sealing ring, wherein the sealing rings are each connected by a resilient bead with the associated closure plate. Due to the structural design of the slider, the slide with the sealing ring at different input and output pressures in the to be shut off pipe pressed to the one or the other side of the valve body, while the sealing ring bears against the other side of the valve body with little force, then at overpressure in the housing of the slide by lifting the sealing ring from the sealing surface of the valve body for a reduction of To provide overpressure.
  • this mode of operation also requires increased wear on the sealing surfaces.
  • the object underlying the invention is therefore to ensure that only when the slide wedge is substantially completely absorbed by the wedge mount, therefore, the sealing surfaces of both the wedge mount and the wedge plate substantially overlapping each other, that only then the Sealing force is built up.
  • the invention proposes that the bellows has a central opening, and that the slide wedge has two openings for receiving guide rods in the slide housing.
  • the bellows which is so far substantially annular, is located between the slide wedge on the one hand and the wedge plate on the other.
  • the wedge plate is detachably connectable to the slide wedge. This against the background that the wedge plate is a wearing part that may need to be easily replaceable.
  • the wedge plate is connected to the slide wedge by a bayonet lock.
  • the bellows is designed as a metal bellows.
  • the metal bellows which is designed in particular as a wave bellows, and has at least one shaft, but preferably three shafts, is connected to the end, preferably at the outer edge both with the slide wedge, as well as with the wedge plate in each case media-tight, in particular welded.
  • the bellows preferably has three shafts, with one of the shafts outwards and two inwards, d. H. on the central longitudinal axis of the tube, are aligned.
  • the bellows is formed in a meandering cross-section.
  • the slider is designated overall by 1; only shown is the slide housing 2, the spindle drive is not shown.
  • the slider housing designated 2 has in the region of the passage 3 to the designated 5 wedge mount.
  • the spindle drive 40 which is arranged on the slide wedge, is merely indicated.
  • the slide wedge on a corresponding receptacle 45.
  • the slide wedge two openings 19 for receiving guide rods (not shown) in the slide housing 2.
  • the wedge mount in the slide housing is substantially annular in shape, and has on its wedge plate 10 side facing a seal 7, forming a seal seat.
  • the seal 7 shows the wedge plate 10 a corresponding seal 11.
  • the wedge plate 10 is received by the slide wedge 15 with a clearance x in the axial direction of the slide passage (arrow 12) through the slide wedge.
  • the bellows 20 has three shafts, two of which are aligned in the direction of the central longitudinal axis of the slider passage (arrow 12) and one in the opposite direction. In this respect results for the bellows 20 a meandering course.
  • the bellows 20 is connected with its ends respectively at the outer edge 21 and 22 with the wedge plate and the slide wedge, wherein the compound is formed as a welded joint when the bellows 20 is a metal bellows.
  • the wedge plate 10 is received by the slide wedge with a clearance x.
  • the wedge plate 20 communicates with the slide wedge 15 through a bayonet lock, the play x being formed by the bayonet lock.
  • the bayonet closure 16 comprises a plurality, in particular four fingers 17, which engage in an annular undercut 18 in the slide wedge.
  • FIG. 2 directed.
  • the annular fingers are in this case arranged on the wedge plate 10 that they are passed on the inside of the bellows.
  • the bellows 20 in this respect an opening 25 which corresponds substantially to the inner diameter of the wedge plate 10.
  • the bellows is returned to its starting position in the moment where there is the same pressure on both sides of the slide wedge, with the result that in this case the wedge plate 10 due to the voltage of the bellows 20 at the slide wedge 15 is used, and occupies a position as shown in the Fig. 1 is shown. That is, the bellows is biased so that when pressure is equalized by the bellows, the wedge plate is used to the slide wedge. At this moment, the pressure between the seals 7 and 11 is reduced, with the result that upon further opening of the slide, the seals 7 and 11 only slightly slide along each other, are therefore subjected to only a small amount of wear.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)
  • Details Of Valves (AREA)
  • Joints Allowing Movement (AREA)

Claims (11)

  1. Vanne coulissante (1) pour fermer un conduit tubulaire, dans lequel la vanne coulissante (1) comporte un boîtier de vanne coulissante (2) et un coin coulissant (15), agencé pour être engagé en coulissement dans un dispositif récepteur du coin (5) ménagé dans le boîtier de vanne coulissante (2), dans lequel le coin coulissant (15) comporte dans la direction transversale du conduit tubulaire, sur ses deux côtés, respectivement une plaque latérale (10), ces plaques étant montées avec du jeu dans le sens de l'axe central longitudinal du conduit tubulaire, sur le coin coulissant (15), dans lequel chacune des plaques latérales (10) peut être compressée par au moins un élément élastique contre le récepteur de coin (5) ménagé dans le boîtier de vanne coulissante (2), dans lequel ledit au moins un élément élastique est configuré sous la forme d'un soufflet (20) circulaire périphérique,
    caractérisée en ce que,
    le soufflet (20) présente une ouverture centrale (25) et en ce que le coin coulissant (15) comporte deux ouvertures (19) pour réceptionner des barres de guidage dans le boîtier de vanne coulissante (2).
  2. Vanne coulissante (1) pour fermer un conduit tubulaire, selon la revendication 1,
    caractérisée en ce que,
    la plaque latérale (10) peut être liée de façon amovible avec le coin coulissant (15).
  3. Vanne coulissante (1) pour fermer un conduit tubulaire, selon la revendication 2,
    caractérisée en ce que,
    la plaque latérale (10) peut être couplée avec le coin coulissant (15) au moyen d'une liaison à baïonnette (16).
  4. Vanne coulissante (1) pour fermer un conduit tubulaire, selon l'une des revendications précédentes,
    caractérisée en ce que,
    le soufflet (20) est constitué d'un soufflet métallique.
  5. Vanne coulissante (1) pour fermer un conduit tubulaire, selon l'une des revendications 1 à 3, en particulier selon la revendication 4,
    caractérisée en ce que,
    le soufflet (20) est lié de façon médiane sur son pourtour extérieur (21, 22) ainsi qu'avec le coin coulissant (15) et avec la plaque latérale (10), de préférence par soudure.
  6. Vanne coulissante (1) pour fermer un conduit tubulaire, selon l'une des revendications précédentes,
    caractérisée en ce que,
    le soufflet (20) est constitué par un soufflet à vagues.
  7. Vanne coulissante (1) pour fermer un conduit tubulaire, selon la revendication 6,
    caractérisée en ce que,
    le soufflet (20) comporte au moins une ondulation, de préférence trois ondulations.
  8. Vanne coulissante (1) pour fermer un conduit tubulaire, selon l'une des revendications 6 ou 7,
    caractérisée en ce que,
    le soufflet (20) comporte des ondulations orientées vers l'intérieur ou vers l'extérieur.
  9. Vanne coulissante (1) pour fermer un conduit tubulaire, selon l'une des revendications précédentes,
    caractérisée en ce que,
    au moins un joint (7, 11) est ménagé entre la plaque latérale (10) et le dispositif récepteur du coin (5).
  10. Vanne coulissante (1) pour fermer un conduit tubulaire, selon la revendication 9,
    caractérisée en ce que,
    la plaque latérale (10) ainsi que le dispositif récepteur du coin (5) comportent respectivement un joint périphérique (7, 11).
  11. Vanne coulissante (1) pour fermer un conduit tubulaire, selon l'une des revendications précédentes,
    caractérisée en ce que,
    le coin coulissant (15) est connecté à un arbre d'entraînement (40).
EP12002382.5A 2012-03-31 2012-03-31 Vanne à coulisse pour fermer une conduite Active EP2644952B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12002382.5A EP2644952B1 (fr) 2012-03-31 2012-03-31 Vanne à coulisse pour fermer une conduite
US13/852,348 US9080675B2 (en) 2012-03-31 2013-03-28 Gate valve for blocking a pipe
CN201310106871.7A CN103363140B (zh) 2012-03-31 2013-03-29 用于堵塞管道的闸门阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12002382.5A EP2644952B1 (fr) 2012-03-31 2012-03-31 Vanne à coulisse pour fermer une conduite

Publications (2)

Publication Number Publication Date
EP2644952A1 EP2644952A1 (fr) 2013-10-02
EP2644952B1 true EP2644952B1 (fr) 2015-09-16

Family

ID=45976614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12002382.5A Active EP2644952B1 (fr) 2012-03-31 2012-03-31 Vanne à coulisse pour fermer une conduite

Country Status (3)

Country Link
US (1) US9080675B2 (fr)
EP (1) EP2644952B1 (fr)
CN (1) CN103363140B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103982670A (zh) * 2014-06-10 2014-08-13 沈阳新光通用机械制造有限公司 浮动楔式闸阀
CN108775411A (zh) * 2018-08-27 2018-11-09 浙江宝龙阀门制造有限公司 电动双扣板式高温高压耐磨闸阀
US11174958B2 (en) 2019-01-24 2021-11-16 Jet Oilfield Services, LLC Gate valve and method of repairing same

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Also Published As

Publication number Publication date
CN103363140B (zh) 2016-01-20
EP2644952A1 (fr) 2013-10-02
US20130256575A1 (en) 2013-10-03
US9080675B2 (en) 2015-07-14
CN103363140A (zh) 2013-10-23

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